Jump to content
CaddyInfo Cadillac Forum

Recommended Posts

You should change your coolant (glycol based) every 2-3 years.

You should also replace your thermostat! For one, they wear out (can't see that), but...

They also get broken.

IMG_1170Medium.jpg

That o-ring? It serves double duty sealing the hot from the cold side - it is also the seal that stops the housing from leaking (no gasket).

I didn't take that off BTW. It was so swollen, that when I pulled the t-stat out, it just fell off.

And yes, it came out in all those chunks - no dismantling required! Not good.

Does explain why it'd run at normal temp one time, then run cold the next.

They're cheap - replace them!

Link to comment
Share on other sites


This is a first, we have never seen this happen on this board

An AC DELCO stat on rockauto is $23 plus the seal

Pre-1995 - DTC codes OBD1  >>

1996 and newer - DTC codes OBD2 >> https://www.obd-codes.com/trouble_codes/gm/obd_codes.htm

How to check for codes Caddyinfo How To Technical Archive >> http://www.caddyinfo.com/wordpress/cadillac-how-to-faq/

Cadillac History & Specifications Year by Year  http://www.motorera.com/cadillac/index.htm

Link to comment
Share on other sites

I've had one break..not in half like that but the s/s bracket broke away,and actually set a code. Can't remember what the code was but I thought what other car but a Cadillac would let you know when your thermo has gone south? :P

look1-1-1.jpg
Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...